On in May 2023 I picked up a TS-440S from a PSARC member. The radio initially belonged to another member, then was passed to the club itself for field day use, and then was retired a couple of years ago after it developed some issues and was replaced with a newer rig. In my own testing I found that the main issue was that the HF6 power connector had developed some oxidation and required some cleaning and also the compression of the socket pins in the HF6 connector on the power cable. This issue was causing a drop in transmit power, which I documented here.

While the radio now works correctly, there are some preventative maintenance tasks that can be performed to help it perform a bit better and also expand its lifespan.

• User Manual
• Service Manual
• https://www.radiomods.co.nz/kenwood/kenwoodts440.html

https://klondikemikescapkits.com/products/kenwood-ts-440s-electrolytic-capacitor-kit